Remove unnecessary __docformat__ settings, broken text.

dulwich/client.py

@@ -38,8 +38,6 @@ Known capabilities that are not supported:
  * include-tag
 """
 
-__docformat__ = 'restructuredText'
-
 from contextlib import closing
 from io import BytesIO, BufferedReader
 import dulwich

dulwich/porcelain.py

@@ -49,8 +49,6 @@ These functions are meant to behave similarly to the git subcommands.
 Differences in behaviour are considered bugs.
 """
 
-__docformat__ = 'restructuredText'
-
 from collections import namedtuple
 from contextlib import (
     closing,

dulwich/repo.py

@@ -750,7 +750,7 @@ class Repo(BaseRepo):
     def commondir(self):
         """Return the path of the common directory.
 
-        For a main working tree, it is identical to `controldir()`.
+        For a main working tree, it is identical to controldir().
 
         For a linked working tree, it is the control directory of the
         main working tree."""